Microbiology refers to the study of
A. Microorganisms including bacteria, viruses and parasites
B. All multi-cellular organisms
C. All eukaryotic organisms
d. Microorganisms including all plants, animals and fungi
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Answer: 3. type B 4. endometrium. 5. spermatocytogenesis.
Explanation:
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Describe how the color of a person's eyes is determined.
Answer:
Variations in a person's chromosomes decide eye colour.
Explanation:
Consider the following scenario: There are variations in the fur color of mice. Some mice have white fur. Some have dark fur. Foxes more easily catch mice with white fur. What will likely be a consequence of this scenario? (1 point) Mice with white fur will be more likely to survive and reproduce. Brown fur will become predominant. White fur will become predominant. Mice with brown fur will be less likely to pass on their genetic information.
Answer:
there will be less white mice than brown so brown fur will become predominant
Explanation:
What pressure, in atm, will be exerted by 8 moles of a gas at 300
Kelvin if it is contained in a 50 Liter vessel?
Answer:
3.94 atm
Explanation:
Using the general gas law equation as follows;
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K)
According to the information provided in this question;
P = ?
V = 50 L
T = 300K
n = 8 mol
Using PV = nRT
P = nRT/V
P = (8 × 0.0821 × 300) ÷ 50
P = 197.04 ÷ 50
P = 3.94 atm
A student learns that glaciers can form U-shaped valleys on Earth’s surface. Which geoscience process takes MORE time to shape Earth’s surface than it takes a glacier to form a valley? * A an earthquake that shifts rock layers, changing the course of a stream b a collision of two tectonic plates that lifts up rock layers forming a mountain range c a landslide that removes part of a hillside d a volcanic eruption that lays down a layer of a molten rock that hardens pls answer
Complete the following sentence.
When growing grapes, a(n) _________
is used to support the growing vines.
no options sorry
ag class plant systems
Answer:
An stick
Explanation:
because it needs support
Answer:
trellis
Explanation:
no balls
Type II survivorship curves Your answer: are characteristic of humans and elephants. typify a population in which all ages have an equal chance of survival. indicate a high mortality rate in the very young. show that very few young are produced, that each is given parental support, and that most individuals live a long life and die of old age. are typical of annual plants
Answer:
b. typify a population in which all ages have an equal chance of surviving. → YES
e. are typical of annual plants → YES
Explanation:
Different species have survival curves differently shaped. In general terms, there are three different survival curves.
Type I. Mortality often occurs at the end of the cycle, representing species with low mortality. Organisms exhibiting this type of survivorship curve have long cycles of life and high probabilities to survive until they are old enough. These species have few descendants and spend too much time and energy in parental care to ensure their reproductive success. Type II. The probabilities of dying are equals all along the cycle, at any age interval. The number of dead individuals remains constant from the beginning to the end of the life cycle. These species have reduced offsprings, and they ensure their reproductive success by providing some significant parental care. Type III. Significant mortality during the early stages of life. Only a few individuals reach the later life stages, getting to survive their first period of life. Survivors usually have a long life. These species produce big offsprings at the same time, but they provide little or no parental care. Their reproductive success relies on the number of descendants.Type II survivorship curves:
a. are characteristic of humans and elephants → No, this is Type I curve
b. typify a population in which all ages have an equal chance of surviving. → YES
c. indicate a high mortality rate in the very young. → No, this is Type III curve
d. show that very few young are produced, that each is given parental support, and that most individuals live a relatively long life and die of old age. → No, this is Type I curve
e. are typical of annual plants → YES
Which of the following is an advantage of sexual reproduction over asexual reproduction?
Answer:
1. Leads to mixing of genetic materials hence variation within species
2. Leads to offspring with hybrid viguor that tend to show high and adaptability to environmental conditions.
3. Variations due to sexual reproduction leads to improvement of species hence evolutionary changes that may bring about specialisation
Which numbers identify the organelles that are present in BOTH plant and animal cells?
Answer: answer is A. Because both plants and animals have plasma membranes, cytoplasm, and mitochondria.
Further Explanation
Cell organelles are components of the cell and life. Cell organelles are the most important part of cells that function to regulate the life processes in cells. Cell organelles are in a part called the cytoplasm. Cell organelles consist of several parts, each of which has a different function but functions as a system that supports the life processes that occur in cells.
Animal Cell Organelles
Animal Cell Organelles are forms of eukaryotic cells that form body tissues and then form organs.
Animal cell organelles consist of:
vesicles
mitochondria
centriole
the nucleus
nucleoli
chromatin
ribosome
endoplasmic reticulum
microtubules
plasma membrane
Vacuoles
cytosol
core membrane
Golgi body
lysosome
vesicles.
Cell Plant Organelles
The functions of these plant cells include
as a constituent of the body of plants
activator of all activities in the body of plants,
related to the process of growth and development in plants,
carrier of genetic traits in plants, and
related to plant reproduction.
Cell Plant Organelles consist of:
Cell nucleus (nucleus)
Chloroplast (Plastida)
Ribosome
Mitochondria
Golgi Agency
Endoplasmic reticulum
Vacuoles
Peroxisomes
Explanation:
HELP STAT!!!!!!!!!!!!
Answer:
B
Explanation:
A woman with type A blood is claiming that a man with type AB blood is the father of her child who is type B.
Can this man be the father of her child?
A No
B. Cannot be determined
C Yes
HELLPPP
Answer:
I think C
Explanation:
Not 100% $ure tho
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Hormones are used to help control growth, __________, and metabolism.
A. reqroduction
B. identity
no dam links
Answer: reproduction
Explanation:
Answer:
A. reproduction
Explanation:
The endocrine hormones help control mood, growth and development, the way our organs work, metabolism , and reproduction.
Aiden is having soup for lunch when the doorbell rings. He gets up from the
table, leaving his metal spoon in the bowl of hot soup. When he comes back a
few minutes later, the spoon is hot.
This is an example of ______________________
. I know this becaus
Answer:
23
Explanation:
Nice edge 40r0
Understanding Dose vs Exposure
John works applying pesticide X to agricultural fields. He spent the morning cleaning out a tank that had contained concentrated pesticide X. The tank was large and he was standing in water all morning (4 hours) power washing the tank. Human skin is a wonderful barrier to entry of compounds as long as it is dry and intact, but wet wrinkly skin can absorb toxins. About 5% of pesticide X absorbs into wet skin and John was in contact with water that had a total of 32 g of the pesticide in it.
After the morning is over, John has lunch but does not wash his hands; he has 2 g of the pesticide on his hands. Pesticide X has about 90% absorption from an oral dose.
Finally, John works in the field in the afternoon a crop plane flies over dusting the crops with pesticide X, the air he breathes in has a total of 5 grams of the compound in it. Pesticide X is known to have absorption of about 50% through inhalation.
What is John’s exposure to Pesticide X and what is his dose?
Route of Exposure Exposure (grams) Dose (grams)
Dermal
Oral
Inhalation
Total
Looking at the total exposure and dose, what percentage of his exposure was a dose?
Answer:
The correct answer is - 15.13%
Explanation:
According to the question, the exposure of the pesticide X to the skin of John is by different routes and amount of the exposure is given and the percentage value is calculated as well:
Route of exposure --- exposure in gram---Dose in gram
Dermal ------------------------32-----------------------32*5/100= 1.6
Oral------------------------------2-----------------------2*90/100= 1.8
Inhalation----------------------5-----------------------5*50/100= 2.5
Total --- -----------------------39 -----------------------5.9
On the basis of this, the exposure is mainly by inhalation, the total exposure is about 39 grams about 5.9 percent. However,
The percentage of dose exposure = (5.9/39)*100
= 15.13%
What are some "characteristics" (life-history traits) of species that make them vulnerable to extinction/endangered status (there's a little diagram/table that we've gone over). for instance, a low reproductive rate is one of them.
Answer:
Over exploitation by people
Habitat loss
Pollution
and urbanilazation
Explanation:
Aroan coloration is the product of crossing a red bull and a white cow.
You cross a roan bull and a red cow. Answer the following question,
What is the genotype of the roan bull?
O A. XRY
O B. RW
O C. rr
OD. RI
PLZ HELP ASAP
The precipitation that fell at this
location was most likely in what form ?
Answer:
in snow form because the weather was mostly below water's freezing point, so it would snow instead of rain.
Explanation:
Maximum precipitation increases in the Antarctic region during the month of July because Antarctica has snowfall at that time of year due to its location at the earth's southern pole, so it has high precipitation in that area.
What is the significance of the Antarctic region?It is the earth's southernmost continent, where the population is negligible, but there are many significant things available that are used for scientific research, such as oceanography and glaciology, as it has a wide variety of ecosystems, including penguins, seals, whales, and many other sea animals that are generally not found in the sea or in the river.
Hence, maximum precipitation increases in the Antarctic region during the month of July because Antarctica has snowfall at that time of year due to its location at the earth's southern pole, so it has high precipitation in that area.
Learn more about the Antarctic here.
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What kind of issues prevent rural areas from having access to media
Answer: no wifi
Explanation:
Answer:
no wifi access, basically your offline
1. Because marble is so effective in neutralizing
acids, it is the main ingredients in
over-the-counter stomach medicines such as_______
and__________?
Answer:
The correct answer is - Antacid, acid blockers.
Explanation:
Marbles are metamorphic rock when it is subjected to get pressure and heat to lie stone a calcium carbonate rock. This is considered a very good agent for neutralizing the acids.
Marbles neutralize the acid by reacting to them and release carbon dioxide, due to made up of limestone or calcium carbonate. They are available in over- the-counters medicine such as antacid and acid blockers.
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Which of the following characteristics would you expect to find in a population of birds in which females choose their mates?
Answer:
The males are much larger than the females
You probably know that many types of birds migrate south for the winter. One reason that flocks fly south is to avoid extreme cold. What is another reason that birds have migration patterns?
Answer: Since someone answer got deleted im gonna recover!!
If you guys have the same test on USATESTPERP its C) There is les available food for the birds to eat. If you guys arent on USATESTPERP then here is the other answer
Birds migrate to move from areas of low or decreasing resources to areas of high or increasing resources. The two primary resources being sought are food and nesting locations.-----Thank you also the name is daimonds cuz someone stole the dimonds) name THANK YOU LOVE YOU GUYS! :3
Effects of temperature on the permeability of Rhoea discolour leaf full lab report. Pdf
Answer:
The results of the former experiments of the author which showed that the permeability of protoplasm increases in light and decreases in the dark were confirmed by the investigations of several authors and by the results obtained in the present paper. 2. The results of investigators who endeavor to show that the permeability increases in light only for some substances, while it may decrease in light for other substances, and that the permeability of protoplasm of some plants increases in the dark while it is not changed by the change of illumination in other cases, are incorrect since the methods used by these investigators to determine the permeability were inexact or faulty
Three complex carbohydrates that are very important in living things are starch, cellulose, and glycogen (see below).. All three of these polysaccharides are polymers of glucose, yet they behave very differently in our bodies. We can digest starch and glycogen, but not cellulose. Examine the drawing of these three polysaccharides below. What differences can you see between these molecules that might explain why
Answer:
The functional group highlighted in pink alternates its position on the carbohydrate molecule
Explanation:
Complex carbohydrates or polysaccharides are large molecular weight molecules composed of repeating unit of simple carbohydrates which are joined together by covalent bonds known as glycosidic bonds. These glycosidic bonds are foremd between the carbon at position number 1 (known as the anomeric carbon) of one simple carbohydrate and a hydroxyl group of another simple carbohydrate.
The configuration of these linkages determines the properties and functions of the complex carbohydrates. The complex polysaccharides starch, glycogen and cellulose are all composed of glucose monomers linked together by glycosidic bonds.
In storage polysaccharides such as starch and glycogen whose function is to store the simple carbohydrate glucose for when needed by the organism, the glycosidic linkages are said to be in α-linkages, placing the functional groups (CH₂OH) all on the same side.
Even the branching points in glycogen are all in α-linkages. Humans have the enzymes to break these bonds so that starch and glycogen molecules can be metabolized by the body.
In a structural polysaccharide such as cellulose, the glycosidic linkages are β-linkages which results in alternating positions for the functional groups. Since humans do not have the enzymes responsible for the breakage of these linkages, hence, we cannot digest cellulose in our bodies.
which substance is a nuclear acid
Nucleic acids are the biopolymers, or large biomolecules, essential to all known forms of life. The term nucleic acid is the overall name for DNA and RNA . They are composed of nucleotides, which are the monomers made of three components: a 5-carbon sugar, a phosphate group and a nitrogenous base.
Why are some scientists concerned about
the Atlantic cod population as the air temperature increases?
Answer:
As greenhouse gas pollution increases, it will create a double whammy for Atlantic and polar cod populations, with warming and more acidic water projected to undercut their reproduction and alter their habitat dramatically, new research shows.
Explanation:
Artificial Selection is another name for _____________.
Answer:
selective breeding
Explanation:
Artificial selection is also known as selective breeding. Selective breeding refers to the process of breeding plants or animals selectively.
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The graph here shows the relative change in energy level for the reactants and the products of photosynthesis. Given the energy levels modeled in the graph, which statement accurately compares the energy of the products and the reactants with regards to
photosynthesis?
A)Water and oxygen have the highest energy compared to glucose and
carbon dioxide.
B)
Glucose and oxygen gas have higher energy levels compared to water and
carbon dioxide.
C)
Glucose and water have the same energy levels compared to carbon
dioxide and oxygen gas.
D)
Glucose and oxygen have a lower energy level associated with them
compared to carbon dioxide and water.
Answer: The answer is B I just took the quiz
Explanation:
Glucose and oxygen gas have higher energy levels compared to water and carbon dioxide is accurately compares the products and the reactants with regards of photosynthesis.
What is Photosynthesis?Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis. Light energy is gathered and utilised during photosynthesis in green plants to change water, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.
It is impossible to overstate the role that photosynthesis plays in sustaining life on Earth. There would soon be little food or other organic materials on Earth if photosynthesis stopped. The majority of life would vanish, and eventually, the atmosphere of Earth would contain almost no gaseous oxygen.
Only chemosynthetic bacteria, which can use the chemical energy of specific inorganic substances and are not reliant on the conversion of light energy, would be able to survive in such an environment.
Therefore, Glucose and oxygen gas have higher energy levels compared to water and carbon dioxide is accurately compares the products and the reactants with regards of photosynthesis.
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ASAP Name one challenge we need to overcome by using solar panels
Answer:
It actually Polutes the enviornment more to own solar panels. This Is caused by the production and the dismemberment of the way its made.
Explanation:
Solar panels are composed of photovoltaic (PV) cells that convert sunlight to electricity. When these panels enter landfills, valuable resources go to waste. And because solar panels contain toxic materials like lead that can leach out as they break down, landfilling also creates new environmental hazards. The potential environmental impacts associated with solar power—land use and habitat loss, water use, and the use of hazardous materials in manufacturing—can vary greatly depending on the technology, which includes two broad categories: photovoltaic (PV) solar cells or concentrating solar thermal plants (CSP).